Home / 11,431.71-17,135.87-7,734.33

Finding the Fourth Proportional to 11,431.71, 17,135.87 and 7,734.33

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Solution

The fourth proportional to 11,431.71, 17,135.87 and 7,734.33 is: 11,593.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.71 : 17,135.87 = 7,734.33 : x
  2. Step 2: Convert to fraction form
    11,431.71/17,135.87 = 7,734.33/x
  3. Step 3: Cross multiply
    11,431.71x = 17,135.87 × 7,734.33
  4. Step 4: Simplify right side
    11,431.71x = 132,534,434.75
  5. Step 5: Solve for x
    x = 132,534,434.75/11,431.71
  6. Step 6: Final answer
    x = 11,593.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.